Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3

A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.

Lightweight, modular, and extensible library for functional programming.

Principled Functional Programming in Scala

ZIO — A type-safe, composable library for async and concurrent programming in Scala

Scala language server with rich IDE features 🚀

The pure asynchronous runtime for Scala

Refinement types for Scala

Optics library for Scala

The Scala HTTP client you always wanted!

Rapid development of self-documenting APIs

Scala library for boilerplate-free, type-safe data transformations

🤖 A bot that helps you keep your projects up-to-date

Writing Fast Parsers Fast in Scala

Functional GraphQL library for Scala

Simple, expressive, and safe UI library for Scala.js

Easy, fast, transparent generic derivation of typeclass instances

Toolkit for Scala Development

Strong type constraints for Scala

A lightweight, distinctly Scala take on functional abstractions, with tight ZIO integration

Sharding and location transparency for Scala

Automatic and customizable compile time transformations between similar case classes and sealed traits/enums, essentially a thing that glues your code. Scala 3 only. Or is it duct 🤔

A fast Kafka client for ZIO and ZIO Streams

🔖 Redis client built on top of Cats Effect, Fs2 and Lettuce

ScalaPB meets ZIO: write purely functional gRPC services and clients using ZIO

A high-performance, purely-functional library for building, composing, and supervising typed actors based on ZIO

Construct ZLayers automagically (w/ helpful compile-time errors)

A friendly newtype library for Scala 3

Type-safe, composable SQL for ZIO applications

Purely Functional Transaction Management In Scala With ZIO